Method and system for preventing full charging of battery of electric braking vehicle and new energy commercial vehicle

Abstract

The invention discloses an electric braking vehicle battery anti-full-charge method and system and a new energy commercial vehicle, and belongs to the technical field of new energy vehicles. The method comprises the steps of collecting altitude data of a current driving position and a to-be-driven position of a vehicle at preset time intervals according to a driving route of the vehicle, and judging whether the vehicle is about to be in a downhill state or not; if the vehicle is about to be in the downhill state, calculating recyclable electric quantity of a vehicle battery according to the altitude data of the current driving position and the to-be-driven position, and further calculating a full charge risk index of the vehicle battery; if the full charge risk index of the vehicle battery exceeds the threshold value, a driver is reminded to conduct mechanical braking. The driving route of the vehicle is obtained in advance, the recyclable electric quantity of each section of downhill road and the full charge risk index of the vehicle battery are calculated, a driver is reminded to use mechanical braking in time, the risk of overcharge of the battery can be effectively reduced, and the service life of the battery is prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of new energy vehicles, and relates to a method and system for preventing full charging of a battery in an electric brake vehicle, and a new energy commercial vehicle. Background Art

[0002] With the increasing shortage of fossil energy in the world and the huge advantage of electricity prices over oil prices, new energy commercial vehicles have achieved rapid development. Due to the functional characteristics of the drive motor, when driving forward, the drive motor is an electrical appliance. When the wheel movement drives the transmission system to work, the drive motor can generate braking force and feed energy back to the battery due to the back electromotive force characteristics, further reducing energy consumption. However, on long downhill roads, the vehicle needs to continue to slow down and may use electric brakes for a long time. At this time, the motor continuously converts kinetic energy into electrical energy and the battery is continuously charged. If it is a long downhill section or a large slope, the battery charge may exceed its design capacity, resulting in the problem of overcharging the vehicle battery, which not only poses a safety hazard, but also has irreversible damage to the battery life. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a method and system for preventing full charging of an electric brake vehicle battery and a new energy commercial vehicle, which can avoid the risk of full charging of the vehicle battery.

[0004] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0005] In a first aspect, the present invention provides a method for preventing full charging of a battery in an electric brake vehicle, comprising:

[0006] According to the vehicle's driving route, the altitude data of the vehicle's current driving position and the vehicle's upcoming driving position are collected at preset time intervals, and it is determined whether the vehicle is about to be in a downhill state;

[0007] If the vehicle is about to go downhill, the recoverable amount of the vehicle battery is calculated based on the altitude data of the current driving position and the upcoming driving position;

[0008] Based on the recoverable electricity and the remaining electricity of the vehicle battery, obtaining a full charge risk index of the vehicle battery;

[0009] If the vehicle battery's full charge risk index exceeds a threshold, the driver is reminded to apply mechanical braking.

[0010] Furthermore, the upcoming driving position is 10 meters away from the current driving position on the vehicle's driving route.

[0011] Furthermore, the recoverable amount of the vehicle battery is calculated based on the altitude data of the current driving position and the upcoming driving position, including:

[0012] ,

[0013] in, Indicates the recoverable amount of electricity of the vehicle; Indicates the altitude of the current driving location; Indicates the altitude of the upcoming driving location; Indicates the vehicle weight; represents the acceleration due to gravity; Indicates the downhill electric braking energy conversion rate.

[0014] Furthermore, the vehicle battery full charge risk index The calculation formula is:

[0015] ,

[0016] in, Indicates the remaining charge of the vehicle battery; Indicates the design capacity of the vehicle battery.

[0017] Furthermore, the threshold is set in a range of 95% to 97%.

[0018] In a second aspect, the present invention further provides an electric brake vehicle battery full charge prevention system, comprising:

[0019] The altitude data collection module is used to collect the altitude data of the vehicle's current driving position and the upcoming driving position at preset time intervals according to the vehicle's driving route, and to determine whether the vehicle is about to be in a downhill state;

[0020] A recoverable power calculation module is used to calculate the recoverable power of the vehicle battery according to the altitude data of the current driving position and the upcoming driving position if the vehicle is about to be in a downhill state;

[0021] A battery full charge risk index acquisition module, used to acquire a full charge risk index of a vehicle battery based on the recoverable power and the remaining power of the vehicle battery;

[0022] The battery full charge risk warning module is used to remind the driver to perform mechanical braking if the full charge risk index of the vehicle battery exceeds a threshold.

[0023] In a third aspect, the present invention further provides a new energy commercial vehicle, the new energy commercial vehicle comprising:

[0024] The above-mentioned electric brake vehicle battery full charge prevention system;

[0025] The vehicle-mounted T-BOX is connected to the altitude data acquisition module to locate the vehicle position in real time;

[0026] The vehicle-mounted T-BOX transmits the vehicle location information to the altitude data acquisition module in the form of TCB network messages.

[0027] Furthermore, the instrument and vehicle controller of the new energy commercial vehicle are connected to the battery full charge risk warning module to remind the driver to perform mechanical braking, including:

[0028] The battery full charge risk warning module displays the risk warning information through the instrument interface to remind the driver to perform mechanical braking; and detects the mechanical braking status through the vehicle controller, and clears the risk warning information on the instrument if the mechanical braking has been involved.

[0029] In a fourth aspect, the present invention further provides a computer device, comprising:

[0030] Memory for storing computer programs;

[0031] A processor is used to execute the computer program to implement the steps of the above-mentioned method for preventing full charging of the battery of an electric brake vehicle.

[0032] In a fifth aspect, the present invention further provides a computer-readable storage medium having a computer program stored thereon, the program being executed by a processor to implement the steps of the above-mentioned method for preventing full charging of a battery of an electric brake vehicle.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The method for preventing the battery from being fully charged in an electric brake vehicle provided by the present invention obtains the driving route of the vehicle in advance, calculates the recoverable power of each downhill section, and then calculates the full charge risk index of the vehicle battery. According to the full charge risk index, the driver is reminded to use mechanical brakes in time, which can effectively reduce the risk of battery overcharge and extend the battery life. The system for preventing the battery from being fully charged in an electric brake vehicle provided by the present invention can be directly embedded in new energy commercial vehicles for use, and has strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic flow chart of a method for preventing full charging of a battery in an electric brake vehicle provided by an embodiment of the present invention;

[0036] Figure 2 A schematic structural diagram of a battery full-charge prevention system for an electric brake vehicle provided by an embodiment of the present invention;

[0037] Figure 3 A schematic diagram of the internal communication principle of a new energy commercial vehicle provided by an embodiment of the present invention;

[0038] Figure 4 An internal structure diagram of a computer device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0039] The technical solution of the present invention is described in detail below through the accompanying drawings and specific embodiments. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. The embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations on the technical solution of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0040] The term "and / or" herein is only a description of the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " herein generally indicates that the front and back associated objects are in an "or" relationship. The orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, and is only used to explain the relative position relationship, movement, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure / application.

[0041] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the feature. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0042] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0043] Embodiment 1:

[0044] like Figure 1 As shown, an embodiment of the present invention provides a method for preventing full charging of a battery in an electric brake vehicle. Figure 1The flowchart is a schematic diagram of the method for preventing full charging of the battery of an electric brake vehicle. This flowchart only shows the logical sequence of the method described in this embodiment. Under the premise of no conflict, in other possible embodiments of the present invention, different Figure 1 The steps shown or described are accomplished in the order shown.

[0045] See also Figure 1 The method of the embodiment of the present invention specifically includes the following steps:

[0046] Step 1: According to the vehicle's driving route, the altitude data of the vehicle's current driving position and the vehicle's upcoming driving position are collected at preset time intervals, and it is determined whether the vehicle is about to be in a downhill state.

[0047] The upcoming driving position is a position that the vehicle has not yet reached at the current moment, and the upcoming driving position is on the vehicle's driving route and is 10 meters away from the current driving position.

[0048] In an embodiment of the present invention, the present invention obtains the altitude information of the route passed by the vehicle through map data, and collects the altitude data of the vehicle's current driving position and the upcoming driving position at intervals of 5 seconds. If the current driving position altitude minus the upcoming driving position altitude is less than 0, the vehicle is about to be in an uphill state; if the current driving position altitude minus the upcoming driving position altitude is greater than 0, the vehicle is about to be in a downhill state.

[0049] Step 2: If the vehicle is about to be in a downhill state, the recoverable power of the vehicle battery is calculated based on the altitude data of the current driving position and the upcoming driving position.

[0050] If the vehicle is about to go uphill, the vehicle is allowed to drive normally according to the original driving strategy. If the vehicle is about to go uphill, the recoverable amount of the vehicle battery is calculated based on the altitude data of the current driving position and the upcoming driving position, including:

[0051] ,

[0052] in, Indicates the recoverable amount of electricity of the vehicle; Indicates the altitude of the current driving location; Indicates the altitude of the upcoming driving location; Indicates the vehicle weight; represents the acceleration due to gravity; Indicates the downhill electric braking energy conversion rate.

[0053] Step 3: Based on the recoverable electricity and the remaining electricity of the vehicle battery, obtain a full charge risk index of the vehicle battery.

[0054] Vehicle battery full charge risk index The calculation formula is:

[0055] ,

[0056] in, Indicates the remaining charge of the vehicle battery; Indicates the design capacity of the vehicle battery.

[0057] Step 4: If the full charge risk index of the vehicle battery exceeds a threshold, the driver is reminded to apply mechanical braking.

[0058] In the embodiment of the present invention, the setting range of the threshold is 95% to 97%.

[0059] Embodiment 2:

[0060] Based on the same inventive concept as Example 1, the embodiment of the present invention also provides an electric brake vehicle battery full charge prevention system for implementing the above-mentioned electric brake vehicle battery full charge prevention method. The implementation scheme for solving the problem provided by the system is similar to the implementation scheme recorded in the above-mentioned method, so the specific limitations in the electric brake vehicle battery full charge prevention system embodiment provided below can refer to the limitations of the electric brake vehicle battery full charge prevention method above, and will not be repeated here.

[0061] like Figure 2 As shown, an embodiment of the present invention provides an electric brake vehicle battery full charge prevention system, comprising:

[0062] The altitude data collection module is used to collect the altitude data of the vehicle's current driving position and the upcoming driving position at preset time intervals according to the vehicle's driving route, and to determine whether the vehicle is about to be in a downhill state;

[0063] A recoverable power calculation module is used to calculate the recoverable power of the vehicle battery according to the altitude data of the current driving position and the upcoming driving position if the vehicle is about to be in a downhill state;

[0064] A battery full charge risk index acquisition module, used to acquire a full charge risk index of a vehicle battery based on the recoverable power and the remaining power of the vehicle battery;

[0065] The battery full charge risk warning module is used to remind the driver to perform mechanical braking if the full charge risk index of the vehicle battery exceeds a threshold.

[0066] Embodiment 3:

[0067] An embodiment of the present invention provides a new energy commercial vehicle, which includes the electric brake vehicle battery full charging prevention system in Example 2.

[0068] like Figure 3 As shown, in an embodiment of the present invention, the vehicle-mounted T-BOX (TelematicsBOX) of the new energy commercial vehicle is connected to the altitude data acquisition module to locate the vehicle position in real time. Specifically, the vehicle-mounted T-BOX transmits the vehicle position information to the altitude data acquisition module in the form of a TCB network message.

[0069] In addition, the instrument and vehicle controller (VCU) of the new energy commercial vehicle are connected to the battery full charge risk warning module to remind the driver to perform mechanical braking.

[0070] Specifically, the battery full charge risk warning module sends the risk warning related information to the vehicle's instrument in the form of a CAN message. After recognition, the instrument reminds the driver to intervene in mechanical braking. At the same time, the mechanical braking status is detected through the vehicle controller. If the mechanical braking has been intervened, the instrument prompt information disappears, otherwise the mechanical braking intervention reminder information of the instrument is always on until the driver enables the mechanical braking position.

[0071] Embodiment 4:

[0072] The embodiment of the present invention further provides a computer device, which may be a server, and its internal structure diagram may be as shown in FIG. Figure 4 As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, referred to as I / O) and a communication interface. The processor, the memory and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, the method for preventing the battery of an electric brake vehicle from being fully charged in the aforementioned embodiment is implemented.

[0073] Those skilled in the art will understand that Figure 4 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0074] Embodiment 5:

[0075] The embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the steps of the following method are implemented:

[0076] According to the vehicle's driving route, the altitude data of the vehicle's current driving position and the vehicle's upcoming driving position are collected at preset time intervals, and it is determined whether the vehicle is about to be in a downhill state;

[0077] If the vehicle is about to go downhill, the recoverable amount of the vehicle battery is calculated based on the altitude data of the current driving position and the upcoming driving position;

[0078] Based on the recoverable electricity and the remaining electricity of the vehicle battery, obtaining a full charge risk index of the vehicle battery;

[0079] If the vehicle battery's full charge risk index exceeds a threshold, the driver is reminded to apply mechanical braking.

[0080] It should be understood by those skilled in the art that the embodiments of the present invention may be provided as methods, systems, or computer program products, and therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0081] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0082] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0083] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0084] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, which all fall within the protection of the present invention.

Claims

1. A method for preventing full charging of an electric brake vehicle battery, characterized in that: include: According to the vehicle's driving route, the altitude data of the vehicle's current driving position and the vehicle's upcoming driving position are collected at preset time intervals, and it is determined whether the vehicle is about to be in a downhill state; If the vehicle is about to go downhill, the recoverable amount of the vehicle battery is calculated based on the altitude data of the current driving position and the upcoming driving position; Based on the recoverable electricity and the remaining electricity of the vehicle battery, obtaining a full charge risk index of the vehicle battery; If the vehicle battery's full charge risk index exceeds a threshold, the driver is reminded to apply mechanical braking.

2. The method for preventing full charging of an electric brake vehicle battery according to claim 1, characterized in that: The upcoming driving position is a position 10 meters away from the current driving position on the driving route of the vehicle.

3. The method for preventing full charging of an electric brake vehicle battery according to claim 1, characterized in that: Calculate the recoverable amount of the vehicle battery based on the altitude data of the current driving location and the upcoming driving location, including: ， in, Indicates the recoverable amount of electricity of the vehicle; Indicates the altitude of the current driving location; Indicates the altitude of the location to be driven; Indicates the vehicle weight; represents the acceleration due to gravity; Indicates the downhill electric braking energy conversion rate.

4. The method for preventing full charging of an electric brake vehicle battery according to claim 3, characterized in that: Vehicle battery full charge risk index The calculation formula is: ， in, Indicates the remaining charge of the vehicle battery; Indicates the design capacity of the vehicle battery.

5. The method for preventing full charging of an electric brake vehicle battery according to claim 4, characterized in that: The threshold is set in the range of 95% to 97%.

6. An electric brake vehicle battery full charge prevention system, characterized in that: include: The altitude data collection module is used to collect the altitude data of the vehicle's current driving position and the upcoming driving position at preset time intervals according to the vehicle's driving route, and to determine whether the vehicle is about to be in a downhill state; A recoverable power calculation module is used to calculate the recoverable power of the vehicle battery according to the altitude data of the current driving position and the upcoming driving position if the vehicle is about to be in a downhill state; A battery full charge risk index acquisition module, used to acquire a full charge risk index of a vehicle battery based on the recoverable power and the remaining power of the vehicle battery; The battery full charge risk warning module is used to remind the driver to perform mechanical braking if the full charge risk index of the vehicle battery exceeds a threshold.

7. A new energy commercial vehicle, characterized in that: include: The electric brake vehicle battery full charge prevention system as claimed in claim 6; The vehicle-mounted T-BOX is connected to the altitude data acquisition module to locate the vehicle position in real time; The vehicle-mounted T-BOX transmits the vehicle location information to the altitude data acquisition module in the form of TCB network messages.

8. The new energy commercial vehicle according to claim 7, characterized in that: The instrument and vehicle controller of the new energy commercial vehicle are connected to the battery full charge risk warning module to remind the driver to perform mechanical braking, including: The battery full charge risk warning module displays the risk warning information through the instrument interface to remind the driver to perform mechanical braking; and detects the mechanical braking status through the vehicle controller, and clears the risk warning information on the instrument if the mechanical braking has been involved.

9. A computer device, characterized in that: include: Memory for storing computer programs; A processor is used to execute the computer program to implement the steps of the method for preventing full charging of an electric brake vehicle battery according to any one of claims 1 to 5.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method for preventing full charging of a battery of an electric brake vehicle according to any one of claims 1 to 5 are implemented.

Images